$OpenBSD: patch-src_ipelib_ipebase_cpp,v 1.1 2017/05/07 20:35:07 espie Exp $

Index: src/ipelib/ipebase.cpp
--- src/ipelib/ipebase.cpp.orig
+++ src/ipelib/ipebase.cpp
@@ -30,6 +30,7 @@
 
 #include "ipebase.h"
 #include <cmath>
+#include <cstdlib>
 
 using namespace ipe;
 
